Komatsu America introduces second-generation hybrid hydraulic excavator
21 April 2011
Komatsu America Corp. recently introduced its second-generation hydraulic excavator, the HB215LC-1, into the North American market. The HB215LC-1 is the result of research and development building on the successful first generation Komatsu hybrid excavator (earlier post).
|The HB215LC-1. Click to enlarge.|
The HB215LC-1 is powered by the Komatsu Hybrid System, which includes Komatsu’s recently developed electric swing motor, power generator motor, capacitor and a 141 hp (104 kW) diesel engine. Komatsu developed its hybrid system to work on the principle of swing energy regeneration and energy storage using the Komatsu Ultra Capacitor system. Komatsu’s Ultra Capacitors provide fast energy storage and instantaneous power transmission.
The kinetic energy generated during the swing-braking phase is converted to electricity, which is sent through an inverter and then captured by the Ultra Capacitor. This captured energy is then discharged very quickly for upper structure rotation and to assist the engine as commanded by the hybrid controller when accelerating under workload conditions.
The HB215LC-1 has an operating weight of 47,530 lbs and a bucket capacity of 1.57 yd³. Komatsu’s second-generation hybrid excavator has been designed for even easier serviceability. The HB215LC-1 has an additional service valve for use with hydraulic attachments and a pattern change valve as standard equipment. Also, the hybrid power train components are backed by a 5 year/7,000 hour warranty.
The HB215LC-1 saves an average of 25% fuel with an equivalent reduction in CO2 emissions as compared to the standard excavator model.
The HB215LC-1 comes standard with the latest KOMTRAX technology, which sends machine operating information to a secure website utilizing wireless technology. Data such as operating hours, location, cautions and maintenance alerts are relayed to the web application for analysis.
Air bladder liquid accumulators and many tested hydraulic technology systems, such as Artemis or NOAX or UPS would reduce the cost and electrical losses. EFFPOWER makes a battery that stores much more energy at lower cost than ultra-capacitors. ..HG..
Posted by: Henry Gibson | 19 October 2011 at 12:01 PM